Board for gliding

Abstract

A board for gliding for downhill skiing, of “shell” type construction having, at lest in an underfoot zone a lower gliding surface composed of a sole plate bordered by metal edges and a topsheet substantially parallel to the lower gliding surface, on either side of the center longitudinal plane of the board. The underfoot zone further includes lateral faces extending between the metal edges and the topsheet, the lateral faces having recesses located below the plane of the topsheet and opening out in the latter. The base of the recess forms a slope that is inclined longitudinally relative to the lower gliding surface and the topsheet.

What is claimed is:  
     
       1. A board for gliding for downhill skiing, said board comprising: 
       a lower gliding surface comprising a sole plate bordered ly metal edges;  
       a topsheet substantially parallel to the lower gliding surface, on either side of the center longitudinal plane of the board;  
       said topsheet comprising an underfoot zone, said underfoot zone being located in the central longitudinal plane of the board to allow said underfoot zone to receive a binding and said underfoot zone being configured to receive the binding;  
       lateral faces extending between the metal edges and the topsheet, said lateral faces having recesses located below the plane of the topsheet, said recesses being open toward the plane of the topsheet and toward the lateral faces, said recesses located in said underfoot zone;  
       wherein the base of the recesses forms a slope that is inclined longitudinally relative to the lower guiding surface and the topsheet; and  
       wherein said base of said recesses comprises a plurality of lower parts said, plurality of lower parts comprising a first lower part inclined toward a front of said lower gliding surface and said top sheet and a second lower part is inclined toward a rear of said lower gliding surface and said topsheet, and wherein said first lower part is inclined toward said front of said lower gliding surface and said topsheet at an angle different than said second lower part is inclined.  
     
     
       2. The board for gliding as claimed in  claim 1 , wherein the base of the recesses is inclined toward the front and the bottom of the board. 
     
     
       3. The board for gliding as claimed in  claim 1 , wherein the base of the recesses is inclined toward the rear and the bottom of the board. 
     
     
       4. The board for gliding as claimed in claimed  1 , wherein the base or the recess has a slope that is substantially constant over the greater part of a length of the gliding board. 
     
     
       5. The board for guiding as claimed in claimed in  claim 1 , wherein, to the front and to the rear of the recess, the lateral faces comprise lateral zones which include different materials. 
     
     
       6. The board for guiding as claimed in claimed in  claim 5 , wherein one of the materials present in one of the lateral zones is of a viscoelastic nature, so as to confer damping properties on said lateral zone. 
     
     
       7. The board for guiding as claimed in claimed in  claim 6 , wherein the lateral zone having damping properties is located to the front of the recess the lateral zone having dynamizing properties being located to the rear of the recess. 
     
     
       8. The board for guiding as claimed in claimed in  claim 6 , wherein the lateral zone having damping properties is located to the recess, the lateral zone having dynamizing properties being located to the front of the recess. 
     
     
       9. The board for guiding as claimed in claimed in  claim 1 , wherein the recesses have a width, measured in the transverse direction of the board, which can vary over the length of the recess. 
     
     
       10. The board for guiding as claimed in claimed in  claim 1 , which is equipped with a raising platform for the binding, including lateral portions of which the lower edge comes into contact with the haste off the recess. 
     
     
       11. The board of  claim 1  wherein said base of said recesses comprises a central portion wherein said central portion is inclined longitudinally relative to the lower gliding surface and the topsheet. 
     
     
       12. The board of  claim 11  wherein said central portion is separated from said topsheet by inclined longitudinal portions. 
     
     
       13. The board of  claim 1  wherein said base of said recesses comprises a lowermost point and wherein said lowermost point forms a limit between a first portion inclined toward a front of the lower gliding surface and the top sheet and a second portion inclined toward a rear of the lower gliding surface and the topsheet. 
     
     
       14. The board of  claim 13  wherein said lowermost point is longitudinally located along said recess at a distance further from end of the recess than from a rear end of said recess. 
     
     
       15. The board of  claim 14  wherein said lowermost point is longitudinally located along said recess at a distance further from the rear end of the recess than from a front end of said recess. 
     
     
       16. The board of  claim 1  wherein said recesses comprises a plurality of lower, surfaces and wherein said base is one of said surfaces, and wherein said base is separated from said topsheet by another surface of said surfaces. 
     
     
       17. The board of  claim 1  wherein said recesses are hounded on three sides. 
     
     
       18. The board of  claim 1  wherein said recesses are longitudinally limited. 
     
     
       19. The board of  claim 1  wherein said recesses are bounded by front and rear surfaces, aid front and rear surfaces being localized in said underfoot zone.